Abstract:
PROBLEM TO BE SOLVED: To detect damage to a board or a component of an immersion system or to prevent its occurrence, in immersion lithography. SOLUTION: This immersion lithography device including a detector measuring a distance between a board support structure and/or a board and a fluid handling system, and/or detecting an item when the item is present between the fluid handling system and the board and/or the upper surface of the board support structure, is disclosed. The detector uses information of an electric characteristic of a fluid provided by the fluid handling system in order to measure the distance. The detector measures the change of resistance and/or capacitance between an electrode of the fluid handling system and the board and/or an electrode of the board support structure. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide lithographic equipment in which a liquid supply system keeps liquid in a space between the final component of the projection system and a substrate by a liquid sealing system. SOLUTION: The liquid supply system 100 is further equipped with a de-mineralizing unit 130, a distillation unit 120, and a UV radiation source 145 to purify an immersion liquid. Chemicals can be added to the immersion liquid to inhibit the growth of living organisms. The components of the liquid supply system 100 can be made of materials non-transparent to visible light to prevent the growth of living organism. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide lithographic equipment in which a liquid supply system keeps liquid in a space between the final component of the projection system and a substrate by a liquid sealing system. SOLUTION: The liquid supply system 100 is further equipped with a de-mineralizing unit 130, a distillation unit 120, and a UV radiation source 145 to purify an immersion liquid. Chemicals can be added to the immersion liquid to inhibit the growth of living organisms. The components of the liquid supply system 100 can be made of materials non-transparent to visible light to prevent the growth of living organism. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus which can be cleaned easily and effectively, and to provide a method of effectively cleaning an immersion lithographic apparatus. SOLUTION: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of cleaning the immersion lithographic projection apparatus using megasonic waves through a liquid are disclosed. A flow, desirably a radial flow, is induced in the liquid. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an immersion-type lithography projection apparatus. SOLUTION: In the immersion-type lithography apparatus, an immersion liquid is confined between a final element of a projection system and a substrate. Both of hydrophobic and hydrophilic layers are used on various elements of the apparatus. The use of them helps to prevent air-bubble formation in the immersion liquid, and reduce residues remained on the elements after immersion in the immersion liquid. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for cleaning the inside of a liquid immersion lithographic apparatus. SOLUTION: Particularly, cleaning fluid can be supplied to a space between the projection system of a lithographic apparatus and a substrate table by the liquid supply system of the lithographic apparatus. Additionally or as an alternative plan, a cleaning device can be arranged on the substrate table, or an ultrasonic emitter can be arranged in order to produce ultrasonic liquid. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To adjust a conventional lithography equipment to an environment of immersion. SOLUTION: In the lithography projection equipment, a liquid supply system and an object W on a substrate table WT are arranged to prevent a high-speed immersion liquid from flowing onto a sensor S. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid filtration method for obtaining the liquid with known purity. SOLUTION: The fluid is filtered by the filtering system, and on the upstream of the final filtering stage, the purity of the liquid is measured. The purity of the fluid, filtered by the filtering system, can be obtained by correcting the filtration characteristics of the final filtration stage. The fluid includes super pure water for use as an immersion liquid for the lithographic system. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for cleaning the inside of an immersion lithographic apparatus. SOLUTION: In particular, the liquid supply system of the lithographic apparatus may be used to introduce a cleaning fluid into a space between the projection system and the substrate table of the lithographic apparatus. Additionally or alternatively, a cleaning device may be provided on the substrate table, and an ultrasonic emitter may be provided to create an ultrasonic cleaning liquid. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus and a device manufacturing method. SOLUTION: A lithography device is disclosed, wherein a liquid-supplying system supplies liquid to a region between a substrate W and a projection system PL of the lithography device, having a liquid containment structure which is fixed to a surface almost vertical to the optical axis of the projection system PL to hold the substrate W so as to limit the liquid to the region the upper surface of a substrate table WT so that the side of the substrate W to be exposed is covered with liquid during exposure. COPYRIGHT: (C)2006,JPO&NCIPI